Hi Physics guys, Years ago when I was teaching Edexcel A Level Physics there was an exam practical with copper plates/wires, copper sulphate solution in a transparent dish and a copper wire probe connected to a multimeter for tracing equipotential lines on a graph paper. Do you have a copy of that paper? I need it quickly to set up the same as class practical. Could you send it to me? Or just tell me where I can find it. Thanks a million.